Abstract: For the past decades, we have accumulated a large quantity of experiences on the technology of hydraulic concrete structure reinforcement based on experiment and project practices．In order to meet the requirement of treating the defects of a great many of reservoirs and dams and water gates currently．challenging the technical difficulties of the treatment of oversize dam and water conveyance projects, we should make scientific experiment, design, construction, material and management combined, paying attention to evaluation, analysis, optimization, plans, mending standardization's pace, training more skilled engineers good at hydraulic structure and material properties to improve the reinforcement technology anew level．